EP2847449A4 - Non-axisymmetric rim cavity features to improve sealing efficiencies - Google Patents

Non-axisymmetric rim cavity features to improve sealing efficiencies

Info

Publication number
EP2847449A4
EP2847449A4 EP13787820.3A EP13787820A EP2847449A4 EP 2847449 A4 EP2847449 A4 EP 2847449A4 EP 13787820 A EP13787820 A EP 13787820A EP 2847449 A4 EP2847449 A4 EP 2847449A4
Authority
EP
European Patent Office
Prior art keywords
improve sealing
rim cavity
cavity features
axisymmetric
efficiencies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13787820.3A
Other languages
German (de)
French (fr)
Other versions
EP2847449A1 (en
Inventor
Eric A Grover
Thomas J Praisner
Joel H Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2847449A1 publication Critical patent/EP2847449A1/en
Publication of EP2847449A4 publication Critical patent/EP2847449A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/73—Shape asymmetric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/97—Reducing windage losses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP13787820.3A 2012-05-08 2013-05-07 Non-axisymmetric rim cavity features to improve sealing efficiencies Withdrawn EP2847449A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/466,254 US9382807B2 (en) 2012-05-08 2012-05-08 Non-axisymmetric rim cavity features to improve sealing efficiencies
PCT/US2013/039850 WO2013169711A1 (en) 2012-05-08 2013-05-07 Non-axisymmetric rim cavity features to improve sealing efficiencies

Publications (2)

Publication Number Publication Date
EP2847449A1 EP2847449A1 (en) 2015-03-18
EP2847449A4 true EP2847449A4 (en) 2015-12-02

Family

ID=49548729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13787820.3A Withdrawn EP2847449A4 (en) 2012-05-08 2013-05-07 Non-axisymmetric rim cavity features to improve sealing efficiencies

Country Status (3)

Country Link
US (1) US9382807B2 (en)
EP (1) EP2847449A4 (en)
WO (1) WO2013169711A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3016406B1 (en) * 2014-01-10 2016-02-12 Snecma TURBOMACHINE ASSEMBLY COMPRISING TWO BODIES AND MEANS FOR GUIDING A FLOWABLE FLUID FROM ONE BODY TO THE OTHER
US9828881B2 (en) * 2015-03-19 2017-11-28 United Technologies Corporation Seal support structures for turbomachines
US10240461B2 (en) 2016-01-08 2019-03-26 General Electric Company Stator rim for a turbine engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060269398A1 (en) * 2005-05-31 2006-11-30 Pratt & Whitney Canada Corp. Coverplate deflectors for redirecting a fluid flow
US20060269400A1 (en) * 2005-05-31 2006-11-30 Pratt & Whitney Canada Corp. Blade and disk radial pre-swirlers
EP2369138A1 (en) * 2010-03-23 2011-09-28 United Technologies Corporation Gas turbine engine with non-axisymmetric surface contoured vane platform

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218189A (en) 1977-08-09 1980-08-19 Rolls-Royce Limited Sealing means for bladed rotor for a gas turbine engine
DE2941866C2 (en) 1978-10-26 1982-08-19 Rolls-Royce Ltd., London Turbine for a gas turbine engine with air-cooled turbine blades
ZA852093B (en) * 1984-03-21 1986-05-28 Wassan Pty Ltd Fluid motor or pump
FR2602847B1 (en) * 1986-07-28 1990-04-27 Sealol E G G SEALING SYSTEM FOR A ROTATING SHAFT IN A SUPPORT ELEMENT
EP1515000B1 (en) * 2003-09-09 2016-03-09 Alstom Technology Ltd Blading of a turbomachine with contoured shrouds
GB0411850D0 (en) 2004-05-27 2004-06-30 Rolls Royce Plc Spacing arrangement
US7465152B2 (en) * 2005-09-16 2008-12-16 General Electric Company Angel wing seals for turbine blades and methods for selecting stator, rotor and wing seal profiles
US7540709B1 (en) 2005-10-20 2009-06-02 Florida Turbine Technologies, Inc. Box rim cavity for a gas turbine engine
US20080080972A1 (en) * 2006-09-29 2008-04-03 General Electric Company Stationary-rotating assemblies having surface features for enhanced containment of fluid flow, and related processes
US8016552B2 (en) * 2006-09-29 2011-09-13 General Electric Company Stator—rotor assemblies having surface features for enhanced containment of gas flow, and related processes
US7967559B2 (en) * 2007-05-30 2011-06-28 General Electric Company Stator-rotor assembly having surface feature for enhanced containment of gas flow and related processes
US8038399B1 (en) 2008-11-22 2011-10-18 Florida Turbine Technologies, Inc. Turbine rim cavity sealing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060269398A1 (en) * 2005-05-31 2006-11-30 Pratt & Whitney Canada Corp. Coverplate deflectors for redirecting a fluid flow
US20060269400A1 (en) * 2005-05-31 2006-11-30 Pratt & Whitney Canada Corp. Blade and disk radial pre-swirlers
EP2369138A1 (en) * 2010-03-23 2011-09-28 United Technologies Corporation Gas turbine engine with non-axisymmetric surface contoured vane platform

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013169711A1 *

Also Published As

Publication number Publication date
WO2013169711A1 (en) 2013-11-14
US9382807B2 (en) 2016-07-05
EP2847449A1 (en) 2015-03-18
US20130302136A1 (en) 2013-11-14

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